8565290

Method and Apparatus for Latency-Aware Scheduling Using Interference Cancellation

PublishedOctober 22, 2013
Assigneenot available in USPTO data we have
Technical Abstract

Patent Claims
18 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. An apparatus, comprising: transceiver circuitry configured to obtain a first data unit received over an air interface, the air interface comprising first and second radio resources; logic circuitry configured to determine whether the first data unit was received over the first radio resources or the second radio resources; the logic circuitry further configured to, when a determination indicates the first data unit was received over the first radio resources, process the first data unit without interference cancellation; and the logic circuitry further configured to, when the determination indicates the first data unit was received over the second radio resources, process the first data unit using interference cancellation, wherein the first and second radio resources are separated in at least one of a frequency domain, a time domain, and a space domain.

2

2. The apparatus according to claim 1 , wherein the logic circuitry is further configured to obtain a second data unit to be transmitted, to obtain a delay requirement pertaining to the second data unit, responsive to the delay requirement being more stringent than a delay threshold value, to cause the transceiver circuitry to cause the second data unit to be transmitted using the first radio resources, and responsive to the delay requirement being less stringent than the delay threshold value, to cause the transceiver circuitry to cause the second data unit to be transmitted using the second radio resources.

3

3. The apparatus according to claim 2 , wherein responsive to the delay requirement being less stringent than the delay threshold value, the logic circuitry is further configured to encode the second data unit to be transmitted, or cause the second data unit to be transmitted to be encoded, for interference cancellation at a receiver.

4

4. The apparatus according to claim 1 , wherein the logic circuitry is further configured to cause a radio resource to be partitioned into first radio resources and second radio resources.

5

5. The apparatus according to claim 4 , wherein the logic circuitry is configured to cause the radio resource to be partitioned, when interference in a cell is one of approaching an interference threshold level or has exceeded the interference threshold level.

6

6. The apparatus according to claim 4 , wherein the logic circuitry is further configured to cause an adjustment in a partitioning of the radio resource responsive to determining that a ratio of delay-sensitive to delay-insensitive traffic has changed.

7

7. A method, comprising: obtaining a first data unit received over an air interface, the air interface comprising first and second radio resources; determining whether the first data unit was received over the first radio resources or the second radio resources; processing the first data unit without interference cancellation, when the determining indicates the first data unit was received over the first radio resources; and processing the first data unit using interference cancellation, when the determining indicates the first data unit was received over the second radio resources, wherein the first and second radio resources are separated in at least one of a frequency domain, a time domain, and a space domain.

8

8. The method according to claim 7 , further comprising: obtaining a second data unit to be transmitted; obtaining a delay requirement pertaining to the second data unit; responsive to the delay requirement being more stringent than a delay threshold value, causing the second data unit to be transmitted using first radio resources; and responsive to the delay requirement being less stringent than the delay threshold value, causing the second data unit to be transmitted using second radio resources.

9

9. An apparatus, comprising: at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following: obtaining a first data unit to be transmitted; obtaining a delay requirement pertaining to the first data unit; responsive to the delay requirement being more stringent than a delay threshold value, transmitting the first data unit using first radio resources; and responsive to the delay requirement being less stringent than the delay threshold value, transmitting the first data unit using second radio resources, wherein the first and second radio resources are separated in at least one of a frequency domain, a time domain, and a space domain.

10

10. The apparatus according to claim 9 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to further perform at least the following: obtaining a second data unit from an air interface, the air interface comprising the first and second radio resources; determining whether the second data unit was obtained from the first radio resources or the second radio resources; processing the second data unit without interference cancellation, when the determination indicates that the second data unit was obtained from the first radio resources; and processing the second data unit using interference cancellation, when the determination indicates that the second data unit was obtained from the second radio resources.

11

11. The apparatus according to claim 9 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to further perform: causing the radio resource to be partitioned, when interference in a cell is one of approaching an interference threshold level or has exceeded the interference threshold level.

12

12. The apparatus according to claim 9 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to further perform at least the following: responsive to the delay requirement being less stringent than the delay threshold value, encoding the first data unit to be transmitted for interference cancellation at a receiver.

13

13. The apparatus according to claim 9 , wherein obtaining the delay requirement pertaining to the first data unit comprises obtaining the delay requirement pertaining to one or more data packets belonging to an identified stream of packets.

14

14. The apparatus according to claim 9 , wherein obtaining the delay requirement pertaining to the first data unit comprises deriving the delay requirement from a type of a data packet.

15

15. The apparatus according to claim 14 , wherein deriving the delay requirement from the type of the data packet comprises assigning a low delay tolerance to data packets of at least one of control data packets, transmission control protocol acknowledgement packets, transmission control protocol synchronization packets, and voice over internet protocol packets.

16

16. The apparatus according to claim 9 , wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to further perform at least the following: adapting the delay threshold value, when a change in traffic conditions occurs.

17

17. A non-transitory computer-readable storage medium encoded with instructions that, when executed by at least one processor, perform at least the following: obtaining a first data unit received over an air interface, the air interface comprising first and second radio resources; determining whether the first data unit was received over the first radio resources or the second radio resources; processing the first data unit without interference cancellation responsive to a determination that the first data unit was received over the first radio resources, and processing the first data unit with interference cancellation responsive to a determination that the first data unit was received over the second radio resources, wherein the first and second radio resources are separated in at least one of a frequency domain, a time domain, and a space domain.

18

18. The non-transitory computer-readable storage medium according to claim 17 , further comprising: obtaining a second data unit to be transmitted; obtaining a delay requirement pertaining to the second data unit; causing the second data unit to be transmitted using first radio resources responsive to the delay requirement being more stringent than a delay threshold value; and code for causing the second data unit to be transmitted using second radio resources responsive to the delay requirement being less stringent than the delay threshold value.

Patent Metadata

Filing Date

Unknown

Publication Date

October 22, 2013

Inventors

Markus Nentwig

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Cite as: Patentable. “METHOD AND APPARATUS FOR LATENCY-AWARE SCHEDULING USING INTERFERENCE CANCELLATION” (8565290). https://patentable.app/patents/8565290

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